Fan Automatic / Manual - ABB i-bus KNX Product Manual

ABB i-bus KNX
3.3.6

Fan automatic / manual

© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
Commissioning
No. Function
31 Automatic on/off
If a fan coil actuator is tripped by the ambient temperature controller, the individual fan stages
are typically switched automatically by the room thermostat. However, users can select
a stage manually. When the stage is specified manually, the 1-bit communication object
triggers an ON telegram and when manual mode is deactivated, an OFF telegram is sent.
This enables you to notify a second control unit that a stage has been set manually.
The 1-bit object can also receive and analyse telegrams sent from other control points.
This data item forms the 1-bit KNX object and can be sent and received. When switching
to manual operation and sending a fan stage via the display, manual mode is enabled.
Automatic mode is re-enabled with this data item after automatic return after a
parameterisable time. For example, if an automatic return is not to be parameterised,
the RTR can be reset externally to the controlling operation via this object.
Note: the coding of this object is matched to ABB actuators. A link to other manufacturers
may make it necessary to use the alternative object "manual switching on/off".
0: the user must set the fan stage (0-3) manually.
1: the fan stage is set to "auto"
31 Manual on/off
See description of "Automatic switching on/off"
The object is visible if it is enabled in the parameters.
0: the fan stage is set to "auto"
1: the user must set the fan stage (0-3) manually.
No. Function
32 Fan stage manual 1 byte
The object is visible alternatively to 1-bit objects 34-36.
The device sets the fan stage actuator to manual mode with this object.
The object has two possible codings, which can be set alternately in the parameters.
Coding 1: 1 byte continuous value (0...100%)
Coding 2: 1 byte counter value, value range 0...3
33 Status operating state of
FanCoil
This 1-byte communication object can be used by the room thermostat to receive information
about the status of the fan coil actuator. It can evaluate whether stage 1, 2, 3, etc. or no stage
was activated.
Object name Data type
Fan automatic / 1 Bit EIS1
manual DPT 1.001
Fan automatic / 1 bit
manual
Object name Data type
Fan manual 1 byte
Status FanCoil 1 byte
operation
Flags
K, S, Ü,
L
K, S, Ü,
L
Flags
K, S, Ü,
L
K, S
74